232120321 has 32 divisors (see below), whose sum is σ = 263894400. Its totient is φ = 203212800.

The previous prime is 232120319. The next prime is 232120327. The reversal of 232120321 is 123021232.

It is a cyclic number.

It is not a de Polignac number, because 232120321 - 2¹ = 232120319 is a prime.

It is a super-2 number, since 2×232120321² = 107759686842286082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232120295 and 232120304.

It is not an unprimeable number, because it can be changed into a prime (232120327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2298171 + ... + 2298271.

It is an arithmetic number, because the mean of its divisors is an integer number (8246700).

Almost surely, 2^232120321 is an apocalyptic number.

It is an amenable number.

232120321 is a deficient number, since it is larger than the sum of its proper divisors (31774079).

232120321 is a wasteful number, since it uses less digits than its factorization.

232120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232120321 is about 15235.4954300804. The cubic root of 232120321 is about 614.5695721330.

Adding to 232120321 its reverse (123021232), we get a palindrome (355141553).

The spelling of 232120321 in words is "two hundred thirty-two million, one hundred twenty thousand, three hundred twenty-one".